 <form action="purchase.php">
<div> Buy 100 Credits! <button name="credit" value="100">Buy Now!</button></div>
<div> Buy 500 Credits! GET 25 FREE! <button name="credit" value="500">Buy Now!</button></div>
<div> Buy 1000 Credits! GET 100 FREE! <button name="credit" value="1000">Buy Now!</button></div>
</form>
